/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayModMagnitudeCalculation.h
Extracts the Set by Caller Magnitude from a Gameplay Effect Spec
The magnitude value if found, zero otherwise
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, BlueprintPure=false, Category="Ability|GameplayEffect") float GetSetByCallerMagnitudeByName ( const [FGameplayEffectSpec](API\Plugins\GameplayAbilities\FGameplayEffectSpec) & EffectSpec, const [FName](API\Runtime\Core\UObject\FName) & MagnitudeName ) const